345 hats had to be packed in boxes with each box containing the same number of hats. All the hats except 2 could be packed. Which of these could be the number of boxes used?
3   6   5   7

Since 2 hats remained the number of hats packed = 345 - 2 = 343, 7 is the only number from the list that divides 343 without a remainder.So that is how I got my answer 7.So that is the question of the day by Glenn Edwards see you next time.